Hi Ritesh,
MetaLAN will be an excellent, easy to use shared storage software for both client and server in your application. I am not aware of any free SAN software that will work for you. You will also need some way to distribute to your client in some hi speed manner – a simple 1GbE ethernet switch, with a single connection back to your server will not be enough bandwidth for anyone to work.
And to get back to your actual HP 12 bay RAID array, even if you don’t want to be criticized, I can see that it is almost impossible to get replacement 146gig drives for this. Let me assure you that if you get this up and working, you WILL have drive failure, and you will need to consider where you will get replacment 146 gig drives to rebuild your RAID array. Your 12 drives, each at 146gigs will give you 1.75 TB at RAID 0 – this will be even less with RAID 5 or RAID 6, to protect your RAID. And I bet these are 1.5gig SATA drives, which means that you will NEVER get more than 200MB/sec total bandwidth on the system. You should use AJA System Test (free download) to test the speed of your array, before you get started with this project. If your overall bandwidth is too slow on your RAID array, how do you expect this to act as a server for multiple editing clients ? You have also not stated what editing software you are using, nor have you stated what compression codec your editors intend to use – is it ProRes422, DVCProHD, Uncompressed HD? All of these things are important, to see if your system will be able to handle what you intend to do.
Bob Zelin